Gas Laws Part 3

Gas Laws Part 3

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Multiple Choice

Which formula would you use to solve the following equation?

If I have 23 L of Ar at a pressure of 12 atm and a temperature of 200 K, and then I increase the pressure to 14 atm and the temperature to 300 K, what is my new volume?

• PV=nRT

• Not enough information is given.

• P1V1/T1 = P2V2/T2

Multiple Choice

A sample of sulfur dioxide occupies a volume of 652 mL at 313 K and 150 kPa. What volume will the sulfur dioxide occupy at 273 K and a pressure of 101.3 kPa ?

• 1682.6 mL

• 20.7 mL

• 492.3 mL

• 842.1 mL

Multiple Choice

In the ideal gas law, which variable represents the gas constant?

• n
• R
• T
• V

Multiple Choice

What is the variable for this number 1.5 mol

• P
• T
• n
• V

Multiple Choice

Which law helps us find the moles of gas in a sample?

• Charles Law
• Boyle's Law
• Combined Gas Law
• Ideal Gas Law

Multiple Choice

Which formula would you use to answer the following problem?

At what temperature will 0.654 moles of neon gas occupy 12.30 liters at 1.95 atmospheres?

• PV=nRT

• P1V1/T1=P2V2/T2

• Not enough information is given.

Multiple Choice

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• .002766 mole
• .0069 mol
• 2.766 mol
• 9.887 mol